The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 08, 2011
Filed:
Mar. 24, 2006
Hiromichi Yoshida, Shioya-gun, JP;
Shigeru Inai, Shioya-gun, JP;
Minoru Koshinuma, Utsunomiya, JP;
Ryo Jinba, Utsunomiya, JP;
Seiji Sugiura, Utsunomiya, JP;
Naoki Mitsuta, Nasukarasuyama, JP;
Katsumi Hayashi, Utsunomiya, JP;
Hiromichi Yoshida, Shioya-gun, JP;
Shigeru Inai, Shioya-gun, JP;
Minoru Koshinuma, Utsunomiya, JP;
Ryo Jinba, Utsunomiya, JP;
Seiji Sugiura, Utsunomiya, JP;
Naoki Mitsuta, Nasukarasuyama, JP;
Katsumi Hayashi, Utsunomiya, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
An oxygen-containing gas flow field is formed on a surface of a first metal separator. The oxygen-containing gas flow field is connected between an oxygen-containing gas supply passage and an oxygen-containing gas discharge passage. The oxygen-containing gas flow field comprises oxygen-containing gas flow grooves, and ends of the oxygen-containing gas flow grooves are extended outwardly beyond ends of electrode catalyst layer of a membrane electrode assembly, and connected to an inlet buffer and an outlet buffer. When the purging process is performed at the time of stopping operation of the fuel cell, the purging air supplied to the oxygen-containing gas flow field discharges water retained in the electrode catalyst layers from the ends to the outlet buffer.